CVE-2026-101628

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Denial of Service in MySQL Cluster

Publication date: 2026-10-20

Last updated on: 2026-10-21

Assigner: Oracle

Description

Vulnerability in the MySQL Cluster product of Oracle MySQL (component: Cluster: NDB Operator). The supported version that is affected is 9.7.3. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Cluster. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

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Meta Information

Published

2026-10-20

Last Modified

2026-10-21

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101628

EUVD

EUVD-2026-106036

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	MySQL Cluster	9.7.3

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle MySQL Cluster version 9.7.3. It allows a low-privileged attacker with network access via HTTP to cause the MySQL Cluster to hang or crash repeatedly, resulting in a denial of service (DOS). The attack does not require user interaction and only impacts availability.

Detection Guidance

This vulnerability affects MySQL Cluster version 9.7.3 and can be exploited via HTTP network access. To detect it, check the MySQL Cluster version running on your system using commands like 'mysql --version' or 'ndb_mgm --version'. Ensure no unauthorized HTTP access is permitted to the Cluster Operator interface.

Impact Analysis

If exploited, this vulnerability can cause your MySQL Cluster to become unavailable, leading to disruptions in database operations. This may result in downtime for applications relying on the cluster, affecting service availability and performance.

Compliance Impact

This vulnerability causes a denial of service (DOS) in MySQL Cluster, leading to system unavailability. For GDPR, this could impact data availability and processing rights. For HIPAA, it may disrupt access to protected health information, potentially violating availability requirements.

Mitigation Strategies

Upgrade MySQL Cluster to a version unaffected by this vulnerability. Apply the latest patches provided by Oracle to address the issue. Ensure network access controls restrict unauthorized HTTP access to the MySQL Cluster component.

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